package chapter02;

import java.util.Scanner;

public class Shopping {
    public  static void main(String[] args) {
        int pencil=1;
        int rubber=2;
        int cola=3;
        int book=12;
        int snacks=5;
        System.out.println("书本的价格为"+book+"元,您总共有20元");
        System.out.println("1.铅笔的价格为:"+pencil+"元");
        System.out.println("2.橡皮的价格为:"+rubber+"元");
        System.out.println("3.可乐的价格为:"+cola+"元");
        System.out.println("4.零食的价格为:"+snacks+"元");
        Scanner scl = new Scanner(System.in);
        System.out.println("请输入其他需要购买商品的序列号: ");
        int id= scl.nextInt();
        switch (id) {
            case 1:
                int pencilmoney=20-book;
                int pencilsum=pencilmoney/pencil;
                int pencilsurplus=pencilmoney%pencil;
                System.out.println("购买完书本后还可以购买铅笔"+pencilsum+"个,还剩"+pencilsurplus+"元");
                break;
            case 2:
			  int rubbermoney=20-book;
				  int rubbersum=rubbermoney/rubber;
				  int rubbersurplus=rubbermoney%rubber;
				  System.out.println("购买完书本后还可以购买橡皮"+rubbersum+"个,还剩"+rubbersurplus+"元");
                  break;
		    case 3:
			  int colamoney=20-book;
				  int colasum=colamoney/cola;
				  int colasurplus=colamoney%cola;
				  System.out.println("购买完书本后还可以购买可乐"+colasum+"个,还剩"+colasurplus+"元");
                  break;
			  case 4:
				  int snacksmoney=20-book;
				  int snackssum=snacksmoney/snacks;
				  int snackssurplus=snacksmoney%snacks;
				  System.out.println("购买完书本后还可以购买零食"+snackssum+"个,还剩"+snackssurplus+"元");
                  break;
			  default:
				  System.out.println("您的输入有误。");
				  break;


        }
    }
}
